12 Min 
In Practice
We know you want to continue to build on your practice, why not hear from others in the sector striving to do the same.
Bookmark
Problem representation
A 37-year-old female with a four-month history of bilateral eye soreness involving the lid margins.
Hypothesis generation
Louise appears to have some form of eyelid disorder that is apparently chronic in nature. Common causes of eyelid dysfunction can include blepharitis, hordeola (styes), dermatitis and chalazion. In this case hordeola and chalazion seem unlikely: the duration of symptoms would rule out hordeola and their bilateral nature tends to eliminate chalazion.
Likely diagnosis
- Blepharitis
- Dermatitis.
Possible diagnosis
- Blocked tear duct/inflammation of the lacrimal sac
- Chalazion
- Ectropion or entropion
- Hordeola
- Hydrocystoma
- Molluscum contagiosum
- Seborrhoeic keratosis
- Xanthelasma.
Continued information gathering
In order to differentiate between blepharitis and dermatitis, it is necessary to get a fuller history of Louise’s symptoms and inspect both the anterior and posterior lid margins.
She has complained of intermittent itching and watery eyes, and initial visual inspection reveals inflamed eye lid margins. These symptoms are consistent with blepharitis. Examination usually also reveals eye lash loss or misdirection accompanied with debris within the lashes. Varying degrees of conjunctival redness may also be present.
You inspect Louise’s eyes and note some lash loss in both eyes, no conjunctival redness of note and normal findings for visual acuity and pupil responses. There also appears to be no obvious redness of the eyelids or surrounding skin. These findings are consistent with a differential diagnosis of blepharitis.
